Injector



(Modem 2 Sheets-Sheet 1.

J. V. MOTTER.

INJECTOR.-

No. 557,081. Patented Mar. 24, 1896.

y'wl gzlgor.

AL; Attorney.

2 Sheets$heet 2.

(ModeL) J. V. MOTTER.

INJECTOR. No. 557,081. Patented Mar. 24 1896.

l/I'III NITED STATES PATENT OFFICE.

JACOB V. MOTTER, OF CINCINNATI, OHIO.

INJECTOR.

SPECIFICATION forming part of Letters Patent N 0. 557,081, dated March 24, 1896. Application filed November 4,1895. Serial No. 567,812. (ModeL) To aZZ whom it may concern.-

Be it known that I, JACOB V. MOTTER, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Injectors, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to that class of automatic steam-injectors for charging boilers with water, and primarily designed for locomotive-boilers, though capable of use wherever injectors are required. Its object is to improve both the construction of the parts, whereby lightness, simplicity and compactness are obtained, and to render the action of the injector more sure and perfect at all times.

The novelty of my invention will be hereinafter set forth, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1, Sheet 1, is a side elevation, partly in section, of so much of an injector as is necessary to illustrate my invention. Fig. 2, Sheet 2, is a transverse section through the dotted line 00 a: of Fig. 1.

The same letters of reference are used to indicate identical parts in both figures.

Except as hereinafter pointed out, the injector is of a well-known type, and in describing it generally it is only necessary to say that A is the exterior shell, with diaphragms B, C, D, F. and F, forming the chambers G, H, I, J, K, and L, of which G is the water-inlet controlled by the usual valve, (not shown,) which seats in the diaphragm B.

H is the steam-inlet chamber, having projecting through diaphragm C the steam-fore ing tube M, controlled by ram-valve N of the usual or any suitable construction.

I is the water-lifting chamber, with waterlifting tube 0 in line with tube M in the usual manner and projecting through diaphragm D into chamber J.

P is the combining-tube in line with tubes 0 and M and projecting through diaphragm E and F, and Q is the water-tube leading to boiler and provided with the usual checkvalve. The diaphragm is perforated, as shown by dotted lines at a, to establish communication between chambers L and K, and serves no other purpose than to support tube P at its discharge end, said chamber Lbeingpractically part of chamber K. Directly over the chamber K is a discharging-chamber formed of a bonnet B, into which is screwed a plugcap '1, from which bonnet-chamber a passage 1", Fig. 2, extends on either or both sides of chamber K to the overflow-discharge S. An L-shaped tube j extends centrally up into the bottom of chamber R, and its opposite flattened and enlarged end opens into chamber J through diaphragm E. A port I) is left between the tube j and the ledges or seats 0 at the bottom of chamber R. A winged valve d, provided with wings d, Fig. 2, fits and is guided in the chamber R and is seated partly on the upper end of tube j and on the ledges c, and within its hollow and counterbored stem is a second independent valve 6, which is guided in valve d and is seated entirely upon the upper endof the tube j. A frostvalve stem 25, Fig. 2, has a threaded bearing through the plug T and is located over the valve cl and can be brought into action to hold both valves seated in locomotive service when desired.

The operation of the injector, under the foregoing description, is as follows: Should the break occur in the chamber J, the exhaust would raise the valve e, which latter would carry with it valve (1 to give relief to both chambers simultaneously until the jet having been again established with a sufliciency of Water to properly actuate the injector the valve 6 would first be drawn to its seat by the vacuum produced in the overflow-chamber J, and then the valve d, after remaining open sufficiently to relieve chamber K, would be closed. Should the break occur, however, at the discharge end of the tube P, only the valve (1 would be raised to relieve the overflow and the valve e would remain seated to prevent any churning back from the chamber K to the chamber J through the tube j, and thus the jet would be more quickly established, as will be readily understood.

Bythis construction the injector is not only simplified in its construction and rendered lighter and more compact, but its action is rendered entirely automatic and quick to relieve breaks and restore the jet. Furthermore, the automatic valve 6 is elevated and can never be submerged in Water, which invariably causes incrnstation and prevents the action of the same at any and all times in the usual automatic type of injectors where said automatic valves are submerged.

Having thus fully described my invention, I claim 1. In an injector, the combination of adjacent overflow-chambers provided with adjacent escape-openings, a single dischargechamber into which said openings enter, and two valves having seats on one plane in said chamber for said openings, the inner one carrying the outer one when opened and the outer 

